This name is a synonym of Achillea mollis Andrz. ex Trautv..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record CB02709A-0593-4351-A6CA-1FE5F58A5A3B).
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Achillea mollis in version 1 of The Plant List.